Messages in this thread | | | Subject | Re: a joint letter on low latency and Linux | Date | Sun, 02 Jul 2000 15:46:58 -0400 | From | Paul Barton-Davis <> |
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>I think people advocating the scheduling/preemption hacks should go >and run some exhaustive tests to find out how bad the latency can be >with said patch, and then identify where the remaining latencies are >coming from. Then fix the worst offender and run the tests again.
Agreed. We have some useful tools for this.
>My guess is you'll be digging yourself in deeper and deeper, >sprinkling random hacks in random places, as Linus put it.
If this turns out to be true, I see it as pretty sad commentary on the state of the kernel. If its sprinkled all over with random hacks that cause it to avoid a return to user space for inordinate amounts of time, that doesn't seem to be a much better situation than the one in which there are a bunch of random hacks that seek to reverse it.
--p
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